Bulgaria vs Portugal: Annual change primary energy source
Bulgaria
1.34
in 2025
Portugal
1.64
in 2025
Bulgaria rank
29th
Portugal rank
26th
Annual change primary energy source over time
- Bulgaria
- Portugal
How they compare
Portugal currently reports 1.64 against 1.34 in Bulgaria, a difference of 0.3.
That makes Portugal's figure about 1.2 times Bulgaria's.
The two have swapped places 8 times across 60 shared years of data; in 1966 it was Portugal ahead.
Bulgaria ranks 29th and Portugal ranks 26th of 80 countries.
Across the 7 decades both report, Bulgaria averaged higher in 1 and Portugal in 4.
Head to head by decade
| Decade | Bulgaria | Portugal | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0 | 0 | 0 | β |
| 1970s | 0 | 0 | 0 | β |
| 1980s | 0 | 0.0001 | 0.0001 | Portugal |
| 1990s | 0 | 0 | 0 | Portugal |
| 2000s | 0.0003 | 0.0159 | 0.0156 | Portugal |
| 2010s | 0.1414 | 0.1182 | 0.0232 | Bulgaria |
| 2020s | 0.9018 | 1.23 | 0.3299 | Portugal |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual change primary energy source, Bulgaria or Portugal?
- Portugal, at 1.64 against 1.34 in Bulgaria as of 2025.
- What is the difference in annual change primary energy source between Bulgaria and Portugal?
- 0.3, with Portugal ahead.
- How many years of comparable data are there for Bulgaria and Portugal?
- 60 years are reported by both, from 1966 to 2025.
- How do Bulgaria and Portugal rank globally for annual change primary energy source?
- Bulgaria ranks 29th and Portugal ranks 26th of 80 countries.
- Where does this data come from?
- Our World in Data, published as Annual change primary energy source. Statizoid refreshes it automatically from the source and publishes the full history for both places.